Oh, go on, then.
% history 1 | awk ‘{a[$2]++ } END{for(i in a){print a[i] ” ” i}}’|sort -rn|head
320 git
112 ll
80 cd
48 ls
24 less
20 man
19 happygiraffe.net
17 sudo
15 rm
14 xattr
NB:
This is at home, not work. [...]